[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

    FMarker, RFMarkInt and SFMarkInt negotiation

    Dear list members,
    I seem to be having problems (or at least mild
    surprises) reading A.3.1 to A.3.3 of draft 10.
    Would you mind answering a few questions and hearing
    out some beginner's ideas? Many thanks in advance.
    Is it true that RFMarkInt when used by initiator 
    means the intervals for the T->I direction, while
    this same key used by target refers to the I->T
    direction? Similarly (well, dually) for SFMarkInt?
    That is, if initiator starts the negotiation and sends
      FMarker=receive; RFMarkInt=17,51
    the target should answer with something like
      FMarker=send; SFMarkInt=34
    (the numbers used are just examples).
    I'm not sure that RFMarker is properly negotiated
    if the answer for it comes with the key "SFMarker"...
    The fact that FMarker=receive by originator
    is the same as FMarker=send by responder isn't 
    pretty either, but at least the given example
    leaves no doubt. Or does it? What if send/receive
    is always with respect to the target? It would
    contradict the general principle that most everything
    in iSCSI is named with respect to initiator, but
    no example eliminates this possibility...
    May I suggest that we use something like ITFMarkInt
    and TIFMarkInt to unambiguously show which 
    direction is being talked about?
    I would also love to tinker with FMarker values
    a bit, ideally get rid of it (thus getting rid of
    a clear parameter dependency), and use ITFMarkInt=0
    and TIFMarker=0 to denote that markers are not in
    use in the respective direction.
    Any comments will be greatly appreciated.
      Martins Krikis
    P.S. I am not really a fan of features that are 
         useless for software implementations and that
         break protocol layering, but would like to at
         least understand how they are to be negotiated...
    Do You Yahoo!?
    Yahoo! Sports - Coverage of the 2002 Olympic Games


Last updated: Fri Feb 22 05:18:09 2002
8841 messages in chronological order